Generally speaking, Si Reverse San can be combined with yin tonic medicines to treat Yang depression and syncope (cold limbs due to poor circulation of yang qi), depression of liver, spleen and qi, etc. with symptoms of yin deficiency. Four Reversals is composed of Radix Bupleurum Chinense, Radix Paeoniae Alba, Citrus Aurantium Citri Reticulatae and Radix et Rhizoma Glycyrrhizae Praeparatae, a conciliatory medicine with the effect of harmonizing the liver and spleen, and relieving depression by transmitting evils, and is used in treating the symptoms of Yang Depression and Convulsive Reversal (coldness of the extremities due to poor functioning of yang qi); and Liver-Spleen-Qi-Depression (distension of the hypochondriacs and ribs and pain in the epigastric region). If there are symptoms of yin deficiency such as dryness of the throat and mouth, five heart-heat (heat in the hearts of the hands and feet, and self-consciousness of the heart and chest being irritable and stuffy), hunger, soreness and weakness of the waist and knees (a feeling of soreness and weakness of the waist and knees), yin-supplementing medicines such as maitake, tiandong, sasanqua, ripened dijian, yuzhu and dendrobium, etc., can be prescribed; for those who suffer from heavy qi depressions, aromatic herbs and yugin can be added. If you have any discomfort, please go to the hospital and consult a professional Chinese medicine practitioner for diagnosis and treatment, and do not blindly use your own medicine.